I have a funcion whose name is stored in a variable , How can I invoke it?
var fun_name='foo'
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5 Answers
If if function is available in global space
window[fun_name]()
If is a member of an object then obj[fun_name]()
Ex:
var obj = {
foo: function(){}
}
obj[fun_name]()
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You can do that using.
window[fun_name]();
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it will also have scope, so simply
scopeVar[fun_name](args);
or if global
window[fun_name](args);
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You can use the "eval" function
This will call alert(3)
foo = 'alert(3)';
eval(foo);
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Check this out. How to execute a JavaScript function when I have its name as a string
Or simply use a switch like follows:
switch(fun_name){
case "foo":
foo();
break;
case "foo2":
foo2();
break;
default:
fooDefault();
}
